ChemMatters Videos

Episode 12: How NASA Keeps Tabs of Air Pollution from Space

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In the Fog about Smog: Solving the Smog Puzzle
on Earth and from Space

Ozone: Our Global Sunscreen

ChemMatters, April 2013

NASA's Aura satellite flies around the world 14 times a day and can detect global air pollution levels from space. This remarkable satellite can measure air quality across the entire planet in just 24 hours. Find out more about Aura, how smog is formed, the future of Earth's ozone hole and much more in episode 12 of the ChemMatters video podcast series.


Episode 11 - Get to know the nutrition facts label

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The Big Reveal: What’s Behind Nutrition Labels
ChemMatters, December 2012

This episode explains the science behind calories and nutrition facts labels. Find out how scientists first determined the calorie content of food in the 1800s, and how fat, protein and carbohydrate levels on nutrition facts labels are found today.


Episode 10: Graphene: The Next Wonder Material?

Youtube ID: SXmVnHgwOZs

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Graphene: The Next Wonder Material?
ChemMatters, October 2012

There is a new wonder material in town that might change our future. Imagine a coffee cup that streams the day’s headlines in real time. Or a cooking pot that can detect the presence of E. coli bacteria that could make you sick. Or a television screen that is as flexible and thin as a piece of paper. All of these applications could be a reality if the wonder material, named graphene, lives up to its hype.

60-second Survey! Tell us what you think.


Episode 9: Digestion: The Incredible Disassembly Line

Youtube ID: MnnfN5BIX7E

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24 Hours: Your Food on the Move
ChemMatters, February 2012

After you eat, you probably don’t give your food another thought. But the story of what happens to your food after you swallow it is quite fascinating. The story of digestion actually begins in the brain, not in the mouth or the stomach. The smell, sight, or even thought of food is enough to increase salivation and get your gastric juices pumping. If you have ever watched a dog eyeing a steak dinner, you can literally see the drool (saliva) dripping from his mouth. People are usually a little more discreet than that!

60-second Survey! Tell us what you think.


Episode 8: Flavor chemistry - The science behind the taste and smell of food

Youtube ID: EJud8MKrvBE

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Mmm…Flavorful Food
ChemMatters, December 2011

Why do people have different reactions to the same food? One person may love chocolate while another may find it too sweet. Some people love cheese while others find its taste and smell unappealing. And some people always want vanilla in their ice cream while others would rather avoid vanilla and choose another flavor instead.

The reason for these differences is due, in large part, to the taste of food, but there are other factors, too. The smell of food, its texture, its color, and its temperature also contribute to what is more generally known as the “flavor” of food. The combination of all of these factors tells us whether food is delicious, good, unpleasant, or downright disgusting.


Episode 7: The Chemistry of Gross Stuff

Part 1: Bad Breath

ChemMatters - Gross Stuff - Bad Breath (Zip file with MP4 video)

Youtube ID: ud6L65OEtnc

 

Part 2: Acne

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Demystifying Gross Stuff
ChemMatters, October 2011

Here is some good news for you: you can blame the sounds and odors that come from your body on bacteria. Yup -- those little critters are the ones responsible for a lot of what goes on inside our bodies. People can be uptight about all these bodily sights and smells, but understanding the science behind what may appear gross may make these things a little less gross.

60-second Survey! Tell us what you think.


Episode 6: Is that "priceless" painting the real deal or a cheap fake?

Vimeo ID: 22846991

 
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Authentic or Not: Chemistry Solves the Mystery
ChemMatters, April 2011

When it comes to detecting art forgery, the stakes are high. Paintings and sculptures carry price tags of tens or hundreds of millions of dollars. A chemical analysis can validate the price, or trash it. In this episode of ChemMatters, find out about the scientific techniques, many based on chemistry, used to examine paintings at the molecular level and determine whether they are fakes or the “real deal.”

60-second Survey! Tell us what you think.


Episode 5: How Wastewater Goes from Polluted to Pure

Vimeo ID: 20575219

 
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Wastewater Recycling
ChemMatters, Feb. 2011 issue

We'd rather not think about it, but the process of how sewage is transformed back into drinkable water is one of the great, underappreciated marvels of modern life.

But how does this happen? In our latest ChemMatters video, we're going to show you how wastewater goes from polluted to pure. To get more acquainted with this process, we visited DC Water's Blue Plains Advanced Wastewater Treatment Plant, which treats a whopping 370 million gallons of sewage a day!

60-second survey! Tell us what you think.


Episode 4: How Do Microwaves Work?

Vimeo ID: 19215455

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Demystifying Myths
ChemMatters, Dec. 2010

The next time you heat leftovers in your microwave, we can't guarantee you will get a great meal. But if you check out this video, you can find out the physics and chemistry behind how your food is cooked!

60-second survey! Tell us what you think.


Episode 3: Demystifying Magic Tricks

Vimeo ID: 15061278

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Magic Tricks
ChemMatters, Oct. 2010

In this ChemMatters video podcast, a high school chemistry teacher and his students explain the unexpected by looking at three “magic” tricks: disappearing ink, candles that cannot be blown out, and an egg that drops into a bottle whose neck is smaller than the size of the egg.

60-second survey! Tell us what you think.


Episode 2: Plastics Go Green

Vimeo ID: 11077939

 
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Bioplastics
ChemMatters, April 2010

ChemMatters is celebrating the 40th anniversary of Earth Day with its second video podcast, which highlights the promises of bioplastics—plastics derived from plants instead of fossil fuels (like most plastics).

60-second Survey! Tell us what you think.


Episode 1: Nanotechnology’s Big Impact

Youtube ID: http://www.youtube.com/embed/xbcn7FR3pdg?feature=player_detailpag

 
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Nanotechnology
ChemMatters, Oct. 2009

Explores the promises of nanotechnology, a field of science and engineering in which devices are made from very small components that are as small as one-millionth of an inch in size.

60-second Survey! Tell us what you think